16 Apr
2015
16 Apr
'15
8:38 p.m.
Try to right-click a folder and click "compact". That should trigger an expunge. There are additional configuration items under account settings. You can make TB expunge on exit, you can turn off local cache to make it more "live" a la webmail...
See more: http://kb.mozillazine.org/Deleting_messages_in_IMAP_accounts
Thank you for the link